What is a network intrusion detection system (NIDS)?

Welcome Delta Sigma Pi

  • Accessibility
  • Sales:

    Home:

    1-800-426-7235

    Business:

    1-866-426-0911

    Chat Now >

    Visit Sales Support Page >


    Order Support:

    Order Lookup >

    Visit Order Support Page >

    Technical Support >

Lenovo
All
  • All
  • Laptops
  • Desktops
  • Workstations
  • Monitors
  • PC Accessories & Electronics
  • Tablets
  • Servers & Storage
  • Servers Accessories
  • Sign In / Create Account
    My Lenovo Account
    Keep track of your wishlist, orders, and rewards all in one place
    Sign In / Create Account
    Welcome Back!
    Access your order, subscriptions, saved carts, rewards balance, and profile
    View My Account
    Orders
    View & track your orders
    Rewards
    Earn & redeem Rewards
    Profile
    Edit name, password, and account settings
    Wishlist
    Manage a wishlist of your favorite products
    Products
    Manage your devices, accessories
    Product Registration
    Register your product and/or update your warranty dates
    Sign Out
  • My Lenovo Rewards
  • Cart
  • Products
  • Solutions
  • Services
  • Support
  • About Lenovo
  • Deals
  • Student
  • Gaming
  • Laptops
  • Desktops
  • Workstations
  • Accessories
  • Software
  • Monitors
  • Tablets
  • Servers & Storage
  • Home & Office
  • AI
  • Deals
TEMPORARILY UNAVAILABLE
DISCONTINUED
Temporary Unavailable
Cooming Soon!
. Additional units will be charged at the non-eCoupon price. Purchase additional now
We're sorry, the maximum quantity you are able to buy at this amazing eCoupon price is
Sign in or Create an Account to Save Your Cart!
Sign in or Create an Account to Join Rewards
View Cart
Remove
Your cart is empty! Don’t miss out on the latest products and savings — find your next favorite laptop, PC, or accessory today.
item(s) in cart
Some items in your cart are no longer available. Please visit cart for more details.
has been deleted
Please review your cart as items have changed.
of
Contains Add-ons
Subtotal
Proceed to Checkout
Yes
No
Popular Searches
What are you looking for today ?
Trending
Recent Searches
Items
All
Cancel
Top Suggestions
View All >
Starting at
  • Back to School! Gear up for the year ahead with these limited-time doorbusters.  Shop Now >

  • My Lenovo Rewards! Enter for a chance to win a Legion 5 Gen 10, mouse, backpack & earbuds! One winner. Ends 8/24. Join for Free >

  • Buy online, pick up select products at Best Buy. Shop Pick Up >

  • Lease-to-own today with Katapult. Get started with an initial lease payment as low as $1! * Learn More >

Home > Glossary > What is a network intrusion detection system (NIDS)?
Glossary Hero
Learn More
StarStar

Annual Sale

Lenovo Laptop SaleLenovo Laptop Sale

Laptop Deals

Desktop DealsDesktop Deals

Desktop Deals

Workstation DealsWorkstation Deals

Workstation Deals

StoreStore

Pick Up Today at Best Buy

ControllerController

Gaming PC & Accessory Deals

MouseMouse

PC Accessories & Electronics Deals

MonitorMonitor

Monitor Deals

Tablet and phoneTablet and phone

Tablets & Phones Deals

ServerServer

Server & Storage Deals

Discount tagDiscount tag

Clearance Sale


What is a network intrusion detection system (NIDS)?

NIDS is a vital cybersecurity tool for safeguarding your computer, laptop, or desktop. It functions as a digital guardian, constantly monitoring network traffic to detect and alert you about potential cyber threats. Whether you're using a sleek laptop, a powerful desktop, or a nimble computer, NIDS adds an extra layer of protection. It's like having a vigilant security guard that keeps a watchful eye on your digital realm, ensuring a secure online environment. Implementing NIDS on your computer systems enhances their resilience against various cyber intruders, contributing to a robust defense strategy.

How does NIDS work?

NIDS operates like a digital detective, constantly sniffing for anomalies in your network traffic. It inspects packets, comparing them to a database of known attack patterns. When it detects something fishy, it barks an alert, notifying you of potential threats. Think of it as a hi-tech security system for your virtual kingdom, always on the lookout for any lurking dangers.

Can NIDS differentiate between normal and malicious traffic?

NIDS excels at distinguishing between regular and malicious network traffic, acting as a digital guardian for your computer, laptop, or desktop. This cybersecurity powerhouse utilizes advanced algorithms and signatures to identify patterns associated with known attacks. It functions seamlessly, ensuring that your devices experience minimal disruptions while remaining vigilant against potential threats. With NIDS in place, your computer ecosystem is safeguarded, and you can confidently navigate the digital landscape without worrying about malicious intrusions. It's like having a watchful protector, silently ensuring the security of your computing devices against cyber threats.

What benefits does NIDS bring to the table?

NIDS is your silent guardian, providing real-time threat detection. By constantly monitoring your network, it prevents cyber intruders from sneaking in unnoticed. It's your early warning system, allowing you to fortify your defenses before any serious damage occurs. With NIDS on your side, you can sleep soundly knowing your digital castle is well-protected.

Could NIDS be intrusive to regular network activities?

Not at all. NIDS operates discreetly in the background, observing without interfering. It's designed to be non-intrusive, ensuring that your network functions smoothly while keeping a watchful eye on potential threats. It's like having a security guard who quietly patrols the premises without disrupting your day-to-day operations.

What types of threats can NIDS detect?

NIDS are cybersecurity heroes, adept at identifying various digital foes. NIDS stands guard against threats like malware, unauthorized access attempts, and suspicious network activities. It acts as a vigilant sentinel, scrutinizing data packets for known attack patterns. Whether it's a stealthy hacker or a malicious software lurking in your network, NIDS is on the lookout, ready to sound the alarm and protect your computer, laptop, or desktop. By recognizing these threats, NIDS ensures a robust defense, keeping your digital devices and data safe from the ever-evolving landscape of cyber dangers.

Does NIDS require constant updates to stay effective?

Absolutely, maintaining the effectiveness of a NIDS demands consistent updates. Just like your computer or laptop benefits from the latest software patches, NIDS relies on regular updates to stay ahead of evolving cyber threats. These updates include new attack signatures, ensuring that the system can recognize and thwart emerging dangers effectively. It's akin to keeping your device's antivirus definitions current for optimal protection. By embracing timely NIDS updates, you reinforce your digital defenses, creating a resilient shield against potential intruders and enhancing the overall security posture of your network, computer, laptop, or desktop.

Can NIDS operate in different network environments?

Absolutely. NIDS is versatile and can adapt to various network setups. Whether you're running a small business network or managing a complex enterprise infrastructure, NIDS can be tailored to fit your specific needs. It's like having a customizable security detail that scales with your network, ensuring protection regardless of its size or complexity.

How do NIDS contribute to overall cybersecurity?

NIDS is a crucial player in the cybersecurity lineup. By providing real-time threat detection, it acts as the first line of defense against potential breaches. It complements other security measures, creating a layered approach to safeguard your digital assets. With NIDS on duty, you're not just securing your network; you're building a robust cybersecurity fortress.

What steps can I take to enhance the effectiveness of NIDS?

To maximize the potency of NIDS, regularly update its signatures and configurations. Ensure it covers all entry points in your network and integrate it with other security measures for a comprehensive defense strategy. Educate your team on potential threats and encourage a security-conscious culture. Think of NIDS as the captain of your cybersecurity team, and with the right support, it will keep your digital ship sailing smoothly.

Can NIDS be deployed in the cloud?

When it comes to securing your digital assets, NIDS is as versatile as it gets. It's not confined by physical boundaries, making it perfectly suited for safeguarding your cloud-based networks. Whether your data resides on a computer, laptop, or desktop in the cloud, NIDS can seamlessly adapt to the dynamic environment. Think of it as a virtual security guard, tirelessly patrolling the cloud landscape to ensure that your sensitive information stays protected. With NIDS on duty, your cloud-based systems remain fortified against potential cyber threats, providing a robust layer of defense for your digital infrastructure.

How do NIDS impact network performance?

NIDS operates efficiently without causing significant performance degradation. It's designed to be a watchful sentinel without hogging resources. With its non-intrusive approach, NIDS ensures that your network functions smoothly while providing robust security. It's like having a guard dog that remains alert but doesn't disrupt the flow of activity within your digital domain.

What are the key differences between NIDS and network intrusion prevention system (NIPS)?

While both NIDS and NIPS share the same mission of safeguarding networks, the main difference lies in their actions. NIDS detects and alerts, acting as a watchful eye. However, NIPS takes proactive measures by actively blocking or preventing identified threats. It's like the difference between a lookout and a guard who not only spots trouble but also intervenes to stop it.

Looking for a Great Deal?
Shop Lenovo.com for great deals on A+ Education PCs, Accessories, Bundles and more.
Shop Deals Now

  • Legion 7i Gen 9 (16″ Intel) Gaming Laptop
    Starting at
    $1,699.99
    Learn More
  • ThinkPad X9 15 Aura Edition (15ʺ Intel) Laptop
    Starting at
    $1,127.97
    Learn More
  • Yoga Book 9i (13” Intel)
    Starting at
    $1,999.99
    Learn More
  • Yoga 9i 2-in-1 Aura Edition (14″ Intel) Laptop
    Starting at
    $1,439.99
    Learn More
  • ThinkPad P1 Gen 7 (16″ Intel) Mobile Workstation
    Starting at
    $2,239.00
    Learn More
  • Shop
    • Student Deals
    • K-12 Student Laptops
    • Student Accessories
    • Laptops by Major
    Education resource
    Explore
    • What is STEM?
    • Best Laptops for College
    • Student & Teacher Discounts
    • Lenovo Sustainability Programs
    Education carry case

    Stem Articles
    See All STEM Articles
    • Online STEM Education

    • STEM Career Tips & Resources

    • Women in STEM

    • STEM Educator Training

    • STEM Grants & Funding

    • STEM Education: Coding for Kids

    • STEM Education: Robotics

    • STEM Education: Biotechnology

    • STEM Education: Sustainability

    • STEM Education: AI & ML

    While every effort has been made to ensure accuracy, this glossary is provided for reference purposes only and may contain errors or inaccuracies. It serves as a general resource for understanding commonly used terms and concepts. For precise information or assistance regarding our products, we recommend visiting our dedicated support site, where our team is readily available to address any questions or concerns you may have.

    Why Lenovo?

    Go Greener with Leno...

    Lenovo is committed to Smarter Climate Action with lower energy laptops, use of sustainable materials and packaging, and available CO2 Offset Services.
    Learn More
    pastel background

    Get It Now, Pay For ...

    Lenovo has multiple financing option: the Lenovo Credit Card, installment plans, and lease-to-own financing op...
    Learn More
    pastel background

    Productivity & Peace of Mind

    Stay productive with Premium Care Plus - 24/7 priority support and coverage against accidental damage. Power through your day with our Smart Performance and extended battery solutions.
    Learn More
    pastel background

    Fast & Secure

    Get the most from your laptop with Lenovo’s state-of-the-art Smart Performance, delivering powerful, all-in-on...
    Learn More
    pastel background

    Assistance and Suppo...

    Chat with a trained professional who can help you find the right products, place or check on an order, or setup your Education laptop.
    Contact Us
    pastel background
    Enter email to receive Lenovo marketing and promotional emails. Review our Privacy Statement for more details.
    Please enter the correct email address!
    Email address is required
    • Facebook
    • Twitter
    • Youtube
    • Pinterest
    • TikTok
    • Instagram
    Select Country / Region:
    Country
    AndroidIOS

    About Lenovo

    • Our Company
    • News
    • Investors Relations
    • Compliance
    • ESG
    • Product Recycling
    • Product Security
    • Product Recalls
    • Executive Briefing Center
    • Lenovo Cares
    • Careers
    • Formula 1 Partnership

    Products & Services

    • Laptops & Ultrabooks
    • Smarter AI for You
    • Desktop Computers
    • Workstations
    • Gaming
    • Tablets
    • Servers, Storage, & Networking
    • Accessories & Software
    • Services & Warranty
    • Product FAQs
    • Outlet
    • Deals
    • Lenovo Coupons
    • Cloud Security Software
    • Windows 11 Upgrade

    Resources

    • Legion Gaming Community
    • Lenovo EDU Community
    • Lenovo Pro Community
    • Lenovo Pro for Business
    • My Lenovo Rewards
    • Lenovo Financing
    • Lenovo Trade-in
    • Affiliate Program
    • Affinity Program
    • Employee Purchase Program
    • Lenovo Partner Hub
    • Laptop Buying Guide
    • Where to Buy
    • Glossary

    Customer Support

    • Contact Us
    • Policy FAQs
    • Return Policy
    • Shipping Information
    • Order Lookup
    • Register a Product
    • Replacement Parts
    • Technical Support
    • Forums
    • Provide Feedback
    © 2025 Lenovo. All rights reserved.
    PrivacyCookie Consent ToolSite MapTerms of UseExternal Submission PolicySales terms and conditionsAnti-Slavery and Human Trafficking Statement
    Compare  ()
    x
    Call

    Need Help? Call: 

    1-800-426-7235
    Select Your Store
    Add items to your cart?
    We've noticed that you've entered a different store. Do you want to add these items to your cart in this Store?
    No Yes. Add in Lenovo Pro
    Add items to your Lenovo Pro Store?
    We've noticed that you've entered a different store. Do you want to add these items to your cart in Lenovo Pro Store?
    No Yes.Add items in Lenovo Pro store.
    Add items to your Affinity Store?
    We've noticed that you've entered a different store. Do you want to add these items to your cart in Affinity Store?
    No Yes.Add items in Affinity store.
    Add items to your Education Store?
    We've noticed that you've entered a different store. Do you want to add these items to your cart in Education Store?
    No Yes.Add items in Education store.

    close_icon

    Sign up and receive up to $100
    off your next purchase.
    Click here for offer details
    Are you shopping for a business?

    No, Thanks

    Click here for offer details
    *Offer valid for new subscribers only. Not valid on previous purchases.
    Lenovo Privacy Policy
    Thanks for signing up!
    You should receive an email from us within the next 2 hours
    *Offer valid for new subscribers only. Not valid on previous purchases.
    Lenovo Privacy Policy
    An error occurred while submitting your request.
    Please try again later.